I changed MailFrom="" in /usr/share/logwatch/default.conf/logwatch.conf
That altered "From:" in the headers, but "Sender:" is still "firstname.lastname@example.org"
EC2 Linux AMI beta, Postfix is the mailer
Arrived here via google with the same problem.
Adding the "-f user" option to sendmail in
/usr/share/logwatch/default.conf/logwatch.conf had no effect.
Turns out logwatch.pl processes
Edit or remove the
MailFrom = root override in
/usr/share/logwatch/dist.conf/logwatch.conf for it to work.
There are several locations where Logwatch configuration details can be specified, with each one superseding the previous one:
/usr/share/logwatch/default.conf/* /etc/logwatch/conf/dist.conf/* /etc/logwatch/conf/* The script / command line arguments
It is recommended to change: